Cloth in



No. 608,468. 7 Patented Aug. 2, I898. I

E. T. 8, E. H. MARBLE.

CLOTH INSPECTING MACHINE.

(Application filed Oct. 6, 1897.) (No Model.) 2 Sheets-Sheet l.

1111 11255 125 j 115) E'JZECI rs WM d @M 7%m6 QM% I Mafia/rm PatentedAug. 2, I898.

E. T. 8:. EIH. MARBLE.

CLOTH INSPECTING MACHINE.

(Application filed Oct. 6, 1897.!

2 Shee ts-Sheet 2.

\No Model.)

Ill"

THE NORRIS PETERS ca, PHoTmumu. wnsnmm'cm. n. c.

UNITED STAT S PATENT Enron.

EDWIN T. MARBLE AN EDWIN H. MARBLE, or WORCESTER,

. MASSACHUSETTS.

'CVLOTH-INSPECTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 608,468, dated August2, 1898.

' Application filed October 6, 1897.

To all whom it mag concern.-

Be it known that we',-EDWIN T MARBLE and EDWIN H. MARBLE, citizens ofthe United States, residing at Worcester, in the county of Worcester andState of Massachusetts,have invented new and useful ImprovementsinCloth-Inspecting Machines, of which the following,together with theaccompanyin g drawings, is a specification sufficiently full, clear, andexact to enable persons skilled in the art to which this inventionapp'ertains to make and use the same.

The object of our present invention is to provide a cloth-inspectingmachine of high practical efficiency having an inspection-table, areversible draft-roll feed or means for carrying the cloth, and rotarybrushing appliances operating and controlled in conj unction with saidpropelling-feed. Said mechanism organized and adapted for a reverseautomatic action of the feed or draft roll devices independently of thebrushing appliances, or wherein the brushes are rendered operativesimultaneously with the advancing feed of the cloth and non-operativewith the reversed action 'of the feed or draft rolls; also to render theadvancive or reversive operation of the mechanism under inStantaneouscontrol of the inspecting attendant.

Our invention consists in providing a clothinspecting machine with meansfor disconnecting the operating mechanism of the brushes and for thenimparting reverse rotative action to the feed or draft roll, so that thecloth can be stopped and automatically run backward by said draft-rollsfor reinSpection of any portion after it has passed the inspection-tablewithout having the surface of the cloth subjected to the brushing actionduring the backward-draft movement or while remaining idle at anyposition of its Web.

Our invention further consists in a clothinspecting machine having itsvarious parts combined and organized for operation in the peculiarmanner ,illustrated'and explained, the particular subject-matter claimedbeing hereinafter definitely specified. I v

In the drawings, Figure 1 is a perspective view of our improvedcloth-inspecting ma chine. Fig. 2 is a plan view of the draft-re- SerialNo, 654,226. (No model.)

versing gearing. Fig. 3 is a side view, and

Fig. 4 is a front View, of a part of the machine. Referringto'parts,Aindic'ates the main frame, provided with suitable projections andbearings for supporting the operating mechanism and carrying upon itstip the inclined inspection table B, preferably having a centralhinging-joint'for turning'up of the lower part.

0 indicates the cradle, of usual form, upon which the cloth is placed ina roll or plaited web preparatory to its passage through the machine.

Extending across the frame, beneath the front of the table, are theguide and tension bars a Z) Z) for smoothing out the cloth as it isdrawn from the cradle, also at a more rear- Ward position the lower andupper guide-rolls O and C A main driver-shaft G is mounted in bearingsat the lower central part of the frame and provided at one end with thetight and loose pulleys G. for receiving the powersupply belt and at itsother'end carrying the draft-operating pulley G and the brush-operatingpulley F, arranged as hereinafter more fully explained.

D indicates the draft roll or feeder, consisting of africtionally-surfaced or cloth-covered roll arranged adjacent to andparallel with the upper rear edge of the table B, with its shaft mountedto turn in bearings on the end frames, and surmounted by the presser ortop roll d, resting'onthe draft-roll surface and having its journalsrunning loose in suitable upwardly-forked bearings in well-known manner.Mounted upon the shaft of the draft-roll there is a loose-running pulleyD, carrying at the inner end of its hub or sleeve a-spur-gear D thatrotates'with the pulley, which latter is operated bya belt G from thepulley G, fixed on the driving-shaft. A friction-clutch D is providedfor connecting the pulley D to the draft-roll shaft for directoperationof the draft-rolls, the sliding clutchcontrolling cone (1thereof being embraced in 5 the fork of the angular shifting lever Dfulcrumed on a stationary part of the frame at a and having itsinwardly-projecting arm connected by a rod K withthe tr'eadle-lever L,so that depression of the treadle-board L effects engagement of theclutch and elevation of the treadle releases the clutch. A train ofreversing gearing is arranged for actuating the draft-roll D in backwardrotation, said gearing comprising in the present instance theperipherally-grooved frictiondisk J, rigidly fixed on the draft-rollshaft, the disk J having the peripheral wedgeshaped flange or tongueadapted for frictionally engaging with said grooved disk and thespur-gear .1 in connection with said flanged disk, mounted on aneeeentrieally-pivoted bearing-stud I, having an arm 1 the swinging ofwhich shifts the friction-disk J into and out of engagement with thedisk J. The arm I is connected by the rod I with a secondarytreadle-lever If, so that depression of said treadle throws thefriction-gearing into action for reversing the rotation and feed of thedraft-roll D.

The friction flangedisk Jand gear J are connected to each other andreceive their motion from the gear 1) on the pulley-sleeve through theintermediate gear i, the direction of rotation of the friction-disk .lbeing thus opposite to that of the draft roll pulley D, so that when thedraft-roll 1) is rotated by the clutch of the pulley to the draft-rollshaft the draftroll and feed of the cloth is normally forward; but whenthe motion is transmitted to the draft-roll through the friction-flange.l and disk I then the rotation of the draft-rolls is in a reversedirection and returns the cloth backward upon the table for thereinspeetion, correction, or marking of any defective portion that mayhave been inadvertently or intentionally permitted to advance beyond thed raft-rolls. This particular arrangement of roll driving and reversinggear is not herein presented as a new mechanical movement, nor as suchmade aspecial feature of our claim otherwise than as an element of thecombination, as we have previously employed reversing-gearing of similarconstruction in another machine.

E and E indicate two primary brushes for clearing the cloth before itpasses to the inspecting-table, and E is the secondary brush forclearing the face of the cloth after it has passed the table anddraft-rolls. In our present invention the essential design is that thesebrushes shall operate during the forward movement of the cloth by thedraft-roll feed and cease operation during any backward movement of thedraft-roll feed, as well as when the feed movement is stopped, and alsothat the backward feed action of the draftroll shall effect apower-actuated movement of the cloth. The brushes are arranged at thepositions shown with their rotating shafts mounted in bearings on theframe A, the primary brushes acting upon the fabric where it is extendedbetween the lower guide-roll C and the upper guide-r0116 and thesecondary brush acting on the fabric as it runs from the draft-roll D tothe guide-rolls O and C. The brushes are severally inclosed,

excepting at their working line, in suitable boxes, which receive thelint or matter cleared from the cloth. The brush-shafts are respectivelyprovided with pulleys e e c for the brush-driving belt F, which runsfrom the operating-pulley F on the d rivin g-shaft G and passes aroundthe several brush-pulleys c c 0?, as shown. The pulley F is loose on thedriving-shaft G, and a friction-clutch F is provided thereon forconnecting the pulley for operation with the shaft. Said clutch isthrown into and out of engagement by an angle-le ver fork l fulcrumed atof upon a bracket or arm fixed to the frame. The horizontal arm of thefork-lever F is connected by a link L with the treadle-lever L, so as tobe moved at the same time with the clutch-actuating lever D, thatcontrols the draft-roll clutch. Springs and S are provided for returningthe treadlcs L and II to the position when relieved from pressurethereon.

N indicates a delivery-feed roll having its journals mounted in bearingson baekwardlyprojecting arms A, fixed on the main frame at the rear partof the machine. Said roll M is operated by a belt N from a pulley N onthe left-hand end of the draft-roll shaft. A pressure-roll m rests uponthe roll M and is journaled in open-fork bearings, as shown.

1 indicates a swinging plaiting-down device operated in conjunction withthe delivcry-feed roll through suitable gearing at R. The guide-roll C"is arranged at the lower rear part of the frame and guide or roll 0 forsteadying the cloth below the brush E The course of the cloth throughthe machine is as indicated on Fig. 3 by the dotted line \V, its normalforward movement being in the direction shown by the arrow.

In the operation of the machine the draftrolls, delivery-feed mechanism,and brushes are simultaneously put into effective action by depressionof the trcadle-lever L, the attendant placing a foot upon the board L.The cloth moves forward over the inspectingtable in an upward recedingdirect-ion, thereby enabling the eye to readily detect imperfections,and this, too, with the cloth moving at a comparatively rapid speed. Thedraftrolls and delivery-feed are put into reverse action without anyoperation of the brushes by depression of the secondary treadle It.Release of the treadles stops the action, and thereby arrests the feedof the cloth.

The driving-pulley and operating-shaft G of the machine continue inconstant motion, while the control of the draft-rolls and brushes iseffected by the quick-acting frictionalcluteh devices responding to thedepression and rise of the primary and secondary treadles, sothat thestarting and stopping of the draft-rolls and brushes for feeding andarresting the cloth in its passage over the inspection-table and thereversal of the draftrolls are effected instantaneouslyor as quickly asthe feet can act on the treadle, the re versing of the action of thedraftrolls re ICC quiring only such instant of time as is consumed inpassing the foot from one treadle to the other. Hence the cloth in itspassage for inspection can be very rapidly and easily manipulated andthe work of inspecting performed with the greatest despatch and withcomparatively little manual labor.

What we claim as our invention, and desire to secure by Letters Patent,is-

1. The combination as described, with the inspection-table,thedraft-rolls at the rear edge of said table, the draft-roll pulley andits clutch mounted on the shaft of said roll, the revolving brushes, andthe brush-pulleys; of a frictional draft-roll-reversing mechanismoperated from said draft-roll pulley, the driver-shaft provided with thedraft-roll-operating pulley fixed thereon, and the brush operating loosepulley andits clutch mounted thereon, the belts running on therespective pulleys, the primary treadle and treadle con nections foractuating the two pulley-clutches, and the secondary treadle andconnections for shifting said draft-roll-reversing mechanism into andout of engagement, all substantially as and for the purposes set forth,

2. In a cloth-inspecting machine, the combination, of aninspecting-table, draft-roll, draft-roll-operating mechanism, revolvingbrushes, and brush-operating mechanism; mechanism for reversingthedraft-roll action, and a treadle-actuated means for controlling saiddraft-roll-reversi'ng mechanism for operation independently of thebrush-operating mechanism, for the purpose set forth.

3. In a cloth-inspecting machine, the combination, as described, of thetension-bars, the primary oppositely-actin g rotary brushes, theguide-rolls O, 0 the inspection-table over which the cloth passesnormally in receding direction, the draft-rolls adjacent to the rearedge of said table, the'secondary brush following saiddraft-rolls, theguiderolls C C the delivery-feed rolls, means for operatingsaid draftand feed rolls in for ward and reverse directions, mechanism foreffecting rotation of the brushes, and a controlling-treadle andconnections whereby said brushes are controlled for action in unisonwith the forward action of the draft-rolls, for the purposes set forth.

4. The combination, as described, with the draft mechanism and the brushmechanism in a cloth-inspecting machine; of the draftroll pulley D onthe draft-roll shaft, the brush-operating pulley F and its clutch on thedriver-shaft G, the clutch-actuating angle-levers D and F, thedriver-shaft- G car- 7 rying the pulley F, and having the pulley G fixedthereon, the belts G5 andF arranged on said pulleys,the treadle-lever Land clutchlever connections K and L for the purposes set forth. Witnessour hands this 4th day of October, 1897.

1 EDWIN T. MARBLE. EDWIN I-I. MARBLE. Witnesses:

CHAS. H. BURLEIGH, ELLA P. BLENUS.

